In message <200812191127.35952.lawrence@xxxxxxxxxxxxxxxx>, Lawrence Rust wrote: Hiya. >On Thursday 18 December 2008 20:17:41 Darron Broad wrote: >> hi >> >> >I have a Hauppauge Nova-S-plus PCI card and it works great with satellite >> >reception. However, I would also like to use it with an external DVB-T >> > box that outputs composite video and line audio but when I select the >> > composite video input I can see a picture but get no sound. >> > >> >I'm using kernel version 2.6.24 so I dug around those sources and I see in >> >cx88-cards.c that there's no provision for line audio in. However, the >> >latest v4l top of tree sources have added support for I2S audio input >> >and 'audioroute's. >> > >> >So I modded my 2.6.24 sources to support the external ADC and enable I2S >> > audio input using the struct cx88_board cx88_boards.extadc flag, similar >> > to the changes made in the current top of tree. This now means that I >> > can watch DVB-T :-) I don't believe the changes affect any other cards. >> > >> >I would like to see support added for the Nova-S-Plus audio line input in >> > the kernel tree asap. What's the best way of achieving this? I can >> > supply a diff for 2.6.24 or the current top of tree. >> >> I would be interested to see what changes you made to achieve this >> and am able to test. Please share your patch for testing. >> >> Thanks >> darron > >Diffs for linux kernel 2.6.24 and the current v4l tip attached. > >The change for the current top of tree is minimal - just a few lines in the >static configuration data of cx88-cards.c. > >The changes for 2.6.24 parallel the changes made for audioroutes in the >current tip. > >Note the changes to cx88_alsa.c to remove the tuner volume control if there's >no TV tuner and to re-group the switches more logically. I was thinking of >adding some code to adjust the WM8775 gain - what do you think? > >HTH. Thanks for that Lawrence. I will test this soon. With regard to the gain control on the WM8775, perhaps you can look at this: http://hg.kewl.org/v4l-dvb-test/shortlog You can find some patches here: http://hg.kewl.org/v4l-dvb-test/rev/c1d603af3bef http://hg.kewl.org/v4l-dvb-test/rev/302d51bf2baf http://hg.kewl.org/v4l-dvb-test/rev/8b24b8211fc9 Which sound like they would do what you desire? I should rebuild these patches soon to for better testing purposes but in the meantime please test if you are interested. Cheers darron >-- Lawrence Rust <snip> -- // / {:)==={ Darron Broad <darron@xxxxxxxx> \\ \ _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
